GPS and airspace

I've been using these marvelous GPS devices since the mid-1990's and am
astonished daily at their accuracy. I use microsoft Streets and Trips 2004
on a laptop for general travel, but need some method to overlay airspace and
aviation waypoints (similar to the info on a sectional).

Is there anything available, or can I somehow scan/import the sectional's
'data' into my laptop map? I have also purchased a couple of versions of
Delorme's Street Finder software, and a totally worthless Rand McNalley
mapping software.

Thanks,
Marty from Boiling hot South Florida (KLNA)